SIP Calculator – Calculate Your Potential Investment Growth
A monthly SIP (Systematic Investment Plan) lets you invest a fixed amount at regular intervals instead of trying to time the market. This SIP Calculator helps you visualise what that habit could look like over the long run, so you can plan with clarity rather than guesswork.
What is a SIP Calculator?
A SIP calculator is an online financial planning tool that estimates how regular investments may grow over a selected period, based on an assumed rate of return. You enter a monthly amount, a duration and an expected annual return — the calculator then shows your total investment, the estimated returns and the estimated future value.
It is important to understand that the result is an illustration, not a promise. Mutual fund investments are market-linked, so actual returns can be higher or lower than the assumed rate.
How Does a SIP Calculator Work?
The calculator uses four simple inputs and one powerful idea — compounding:
- Monthly investment (P) – the amount you invest every month.
- Investment period (n) – how long you continue investing, converted into months.
- Assumed annual return – the rate you expect, converted into a monthly rate.
- Compounding – each instalment gets its own growth period, and returns are assumed to be reinvested.
- Total investment – simply the monthly amount multiplied by the number of months.
- Estimated future value – the projected value of all instalments at the end of the period.
SIP Calculator Formula
The standard formula used for a monthly SIP future value is:
FV = P × [ ((1 + r)n − 1) ÷ r ] × (1 + r)
P = monthly investment • r = monthly rate (annual ÷ 12 ÷ 100) • n = number of monthly instalments
Where r is the monthly rate of return and n is the total number of monthly investments. If the assumed return is 0%, the future value simply equals the total amount invested — the calculator handles that case correctly without any division-by-zero error.
Example: SIP of ₹5,000 for 10 Years at 12% Assumed Return
| Parameter | Value |
|---|---|
| Monthly SIP | ₹5,000 |
| Investment period | 10 years (120 months) |
| Assumed annual return | 12% p.a. |
| Total amount invested | ₹6,00,000 |
| Estimated returns | ₹5,61,695 |
| Estimated future value | ₹11,61,695 |
In this illustration, an investment of ₹6,00,000 over 10 years is projected to grow to approximately ₹11,61,695 if the assumed 12% annual return is achieved consistently. Real market-linked returns will vary, and the actual outcome could be materially different from this estimate.
Why Use a SIP Calculator?
- Goal planning – see whether your current monthly amount is enough for the goal you have in mind.
- Understanding long-term compounding – visualise how time, not just the amount, drives growth.
- Comparing investment amounts – test ₹2,000, ₹5,000 or ₹10,000 a month side by side.
- Estimating required monthly savings – work backwards from a target corpus.
- Developing financial discipline – a fixed monthly commitment is easier to stick with than lump-sum decisions.
- Understanding the impact of time – a longer horizon often makes a visible difference to the projected result.
Use the calculator above to experiment with different combinations. It updates instantly, so you can see how small changes in amount, duration or assumed return affect the projected outcome.